Event: Summer

PDF Excel

Opponent	Rating	Result
Mark Paul	0	0 - 0
David Edwards	0	½ - ½
Richard J Smith	0	½ - ½
Rick Dooley	0	1 - 0
Graham L Jones	0	1 - 0

performance = (sum(opponents ratings) + 400(wins-losses)) / games

200 = (0 + 400 * (2 - 0)) / 4)